266222222 has 32 divisors (see below), whose sum is σ = 464950272. Its totient is φ = 111966624.

The previous prime is 266222197. The next prime is 266222269. The reversal of 266222222 is 222222662.

It is a happy number.

Its product of digits (4608) is a multiple of the sum of its prime divisors (1152).

266222222 is a modest number, since divided by 22222 gives 2662 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 266222191 and 266222200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433988 + ... + 434600.

It is an arithmetic number, because the mean of its divisors is an integer number (14529696).

Almost surely, 2^266222222 is an apocalyptic number.

266222222 is a deficient number, since it is larger than the sum of its proper divisors (198728050).

266222222 is a wasteful number, since it uses less digits than its factorization.

266222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its digits is 4608, while the sum is 26.

The square root of 266222222 is about 16316.3176605507. The cubic root of 266222222 is about 643.3018020526.

Adding to 266222222 its reverse (222222662), we get a palindrome (488444884).

The spelling of 266222222 in words is "two hundred sixty-six million, two hundred twenty-two thousand, two hundred twenty-two".